I also much prefer single coil cartos.
Ive used these carto tanks
ElectronicStix.Com · Standard J-Tank (3.3ml)
and these (low resistance) cartos
ElectronicStix.Com · Single Boge 510 Blank Laser Punched Cartomizer For Tank Systems
on my mechanical for a long-long time.
Going with cartos just for the ease of use. I'm sure in time I will move up the ladder, but for now I just want something easier....
Is a kick needed when you're using a topper that is well within the amp draw rating? Like, for example, a 2ohm carto tank, using AW IMRs rated for 10 amps?